Polishing-wheel.



Patented Aug. 29

vv. E. Hmm.

POLISHING WHEEL.

APPLICATION FILED MAY l. |915.

Lwmm

etti

the linseed oil is being an elastic and dudy st WILLIAM E. HEJDLER,

OF NEW YGRK, hl'. Y.

lPOLlISll-Ilfhl'Gr-WHEEL.

,incense Application filed May 7, 1915. ,Serial No. 26,636.

y New York, in the county of New York and State of New Yorlq, have invented certain new and useful Improvements I1n Polishinglowing to be a full, clear, and exact de scription of the invention, such aswill enable others skilled in the art' to which it appertains, to make and use the saine.

This inventior.- relates toy polishing wheels and .more particularly to' a process of Inanufacture of such a wheehof resilient material.

An object of this invention is to provide a polishing wheel of a substance, using boiled oxidized linseed oil as a base. y

A further object of this invention is the i' provision of a polishing wheel having oai dized linseed oil as a base and a ller incorporated therein.

A further object of this invention is .the provision of a polishing wheel comprising a homogeneous mass of oxidized linseed oil,y gum, resin and a filler vwhich may be of a resinous character.

Further objects will be apparent from the following speciication, appended claims and drawing in which- Figure 1 is a vertical sectional view through an apparatus to produce the product described herein and Fig. 2 is a perspective view of a polishing wheel made by this process.

lin carrying out this process for the production of an article of manufacture of this character, the apparatus described herein,

will be the preferred form for the producf tion ofthe article but it is understood that no restrictionl is implied to theV immediate parts orl associations. e

ln following the several steps of the process, linseed voil is introducedy into the cylinder which is provided with a stcam/ jacket' ll where an agitator 12 acts upon the linseed oil when its temperature has been raised to the desired degree land, this agi- 'tator12 may be driven by the bevel gear 13 and pinion 14 at the desired speed. While treated in its boiling state, predetermined proportions of gum and resin are added thereto when the treatment of this mass continues until it is reduced to ate. After this maar, has been-properly treated, the gate l5 is Specicaton of Letters Patent.

scribed.y The plunger Wheels; and l' do hereby declare the folthe mixture falls opened to allow said mass to pass within the cylinder 16 which a steam jacket 17 and a plunger 18 is provided to force the contents from this cylinder thro-ugh the mixingapparatus to be de- 18 has a threaded stem l19` which passes through the nut 20 rotatably held by clamps 21 and this nut is provided with a geared periphery to mesh with the worin 22 to raise or lower the plun-- ger 18 as desired. The cylinder 16 has an outlet. at the bottom thereof in which a gate 23 is provided'. l i

From the cylinder 16, the mass is forced into a cylinder 24 which has a steam jacket 25 formed on the lower part thereof and in whlch cylinder is` liXed a series of cutters 26. A hopper 27 is provided for the admission of granulated cork to the mass being treated within Vthe cylinder and to establish the Inixing action, a shaft 28 is journaled in said cylinder to support the hub 29 upon which is likewise provided with Patented Aug. 29,]l9dti.

cutters 30 are formed which pass between the cutters 26 carried by the cylinder 24, and

.this shaft is provided with a pulley 3l by which'the desired to the shaft. y

In leaving the spout 32 of thev cylinder 24, upon an endless belt 33 which is carried by the rollers 34 'and 35 and which passes over a bed 36 where the mass is spread uniformly by the leaf 37 which is pivoted as at 33 and which is given atamping action by the eccentric 39 on the shaft 40, strap 41 surrounding said eccentric and pitinan 42 which connects said strap and leaf 37;

When the film comprising the uffy maw and granulated cork leaves the belt 33 as shown at 43, rollers 44 and 45 together with a web of falbric 46 from the roll J4'? where it is subjected to ,pressure to combine saiddlm and fabric and then the Elm and fabric are passed between the rollers 48 and 49 where speed may bey imparted the desired pressure is applied thereto, after.

oil in the cylinder 10., an air blast from a source of supply is yit passes between the heated fed through the piping 53 to a chest 54 from where it is liberated through a series of jets 55 into the mass being treated by the agitator 1Q.

In carrying out this process, the following ingredients and proportions thereof have proven satisfactory for certain results obtained, but it is understood that by Varying the proportions and substituting equivailents, polishing wheels of different characteristics may be producedas desired. When the linseed oil has been introduced into the cylinder 10 and the temperature thereof raised toa :boiling point, for each 100 parts by weight, four parts of gum, preferably Kaurie and two parts of resin are added in small quantities from time to time Aand this mixture is raised to the temperature of from 394 degrees to 450 degrees Fahrenheit. The admissionI of air and agitation of this mass reduces it' to the elastic fluffy state referred to. When this mass has been admitted into the cylinder 24, one hundred parts of granulated cork are admitted through the hopper 27 where the cork and {iuffy mass are thoroughly mixed. As each of the ingredients possesses a sticky binding character, it is clearly seen that when combined as described, they form a homogeneous mass of' WILLIAM E. HEDLER.

Witnesses:

GEORGE L. THOM, HARRY C. ADAMS. 

